Aluminium and other metals are normally badly corroded by alkalis.铝和其他金属通常会被碱严重腐蚀.Acids neutralize alkalis and vice versa.酸能使碱中和,碱亦能使酸中和.Weak alkalis ionize partly ( ionize ) in water to give hydroxide ion.弱碱 在水中部份电离,放出氢...
Acids neutralize alkalis and vice versa.酸能使碱中和,碱亦能使酸中和.What's the scale that's used to compare the strength of acids and alkalis?用何种标准来比较酸碱度？Aluminium and other metals are normally badly corroded by alkalis.铝和其...
The directors of this company feel he's worth every penny.这家公司的主管们觉得他值得栽培。Unleaded gasoline rose more than a penny a gallon.无铅汽油每加仑涨了1分多。Penny's only son was the apple of her eye.彭妮的独子是她的心肝宝贝。...
那只猫掉进洞里,爬不出来.The cat fell into the hole and couldn't climb out of it.那条蛇爬进洞里.The snake has crawled into a hole.要把球打进洞里看起来算不了什么,其实很需要技术.It takes more skill than it looks to knock the ball into the hole....